Install sagemath-database-graphs by entering the following commands in the terminal:
sudo apt update sudo apt install sagemath-database-graphs
Description:
Databases of graphs
This package contains a database of graphs, created by Emily Kirkman based on the work of Jason Grout. It also contains the ISGCI graph database. . It is part of the sagemath software suite.
Homepage: http://files.sagemath.org/spkg/upstream/graphs/index.html
Version: 20161026+dfsg-1
Section: universe/math